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SPU: Implement timing for RAM reads/writes

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This commit is contained in:
Connor McLaughlin
2020-03-29 01:12:37 +10:00
parent 20025b2ffd
commit 423f04325f
4 changed files with 260 additions and 88 deletions
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14
src/core/spu.h
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@ -71,6 +71,8 @@ private:
static constexpr u32 CAPTURE_BUFFER_SIZE_PER_CHANNEL = 0x400;
static constexpr u32 MINIMUM_TICKS_BETWEEN_KEY_ON_OFF = 2;
static constexpr u32 NUM_REVERB_REGS = 16;
static constexpr u32 FIFO_SIZE_IN_HALFWORDS = 32;
static constexpr TickCount TRANSFER_TICKS_PER_HALFWORD = 32;
enum class RAMTransferMode : u8
{
@ -354,9 +356,6 @@ private:
u16 ReadVoiceRegister(u32 offset);
void WriteVoiceRegister(u32 offset, u16 value);
void UpdateDMARequest();
u16 RAMTransferRead();
void RAMTransferWrite(u16 value);
void CheckRAMIRQ(u32 address);
void WriteToCaptureBuffer(u32 index, s16 value);
void IncrementCaptureBufferPosition();
@ -374,10 +373,16 @@ private:
void Execute(TickCount ticks);
void UpdateEventInterval();
void ExecuteTransfer(TickCount ticks);
void ManualTransferWrite(u16 value);
void UpdateTransferEvent();
void UpdateDMARequest();
System* m_system = nullptr;
DMA* m_dma = nullptr;
InterruptController* m_interrupt_controller = nullptr;
std::unique_ptr<TimingEvent> m_tick_event;
std::unique_ptr<TimingEvent> m_transfer_event;
std::unique_ptr<Common::WAVWriter> m_dump_writer;
u32 m_tick_counter = 0;
TickCount m_ticks_carry = 0;
@ -421,6 +426,9 @@ private:
s16 m_reverb_right_output = 0;
std::array<Voice, NUM_VOICES> m_voices{};
InlineFIFOQueue<u16, FIFO_SIZE_IN_HALFWORDS> m_transfer_fifo;
std::array<u8, RAM_SIZE> m_ram{};
InlineFIFOQueue<s16, CD_AUDIO_SAMPLE_BUFFER_SIZE> m_cd_audio_buffer;